const express = require('./express');

const app = express();

app.use('/user', (req, res, next) => {
    console.log('use');
    next('err---------------------');
})

app.use('/user', (req, res, next) => {
    console.log('use2');
    next();
})

app.use("/user", (err, req, res, next) => {
    console.log(err);
    res.end('lllll')    ;
})


app.listen(3001);